Ground for plasterers.



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A Patented luly 9 F. L. UNIUN. GROUND FOR"PLASTEBERS.

(Application 1e d Nov'. 6, 1399.)

UNITED STATES PATENT OFFICE. f

FRANK L. UNION, or nos'roN,4 MAssAoH-Usnrrs.

GROUND FOR PLASTERERS.

SPECIFICATION 'forming pm of Letters Patent No. 678,146, dated July e, 1901. I Application filed November 6, 1899. Serial Nic. 735,908. (No modell) i To a/ZZ whom it may concern.:

Be it known that I, FRANK L. UNION, ofV

Boston, in the county of Suffolk and State of- Massachusetts, have invented certain new and usefulImprovementsin Grounds forPlasterers, of which the following is a specification.

Referring'to the drawings which form a part of this specification, and on which simi- Io lar reference characters indicate similarparts Fig. 2. Figs. 5 to 10, inclusive, illustrate various'uses to which-the invention may be put. A Figs. 11 to 14, inclusive, represent other embodiments of the invention.

Heretofore in. plastering walls, and especially those which are not formed with au wooden groundwork, it has been di'icult to provide grounds for the plaster; and the object of the present invention may therefore be briefly stated to be the provision of a device which may be attached to the lathng or to the wall itself ,and which has a continuous straight edge adapted to serve as aground for -the plasterer to work by. By constructing the ground with a 'base-strip and a web, the edge of which forms the line for'the plasterer, it may be utilized .for various purposes and, if desired, serve the function of a pic- 'ture-n1oldi ng. V

Referring to the drawings, the device is shown as consisting of a strip of metal having a base .a and a web or rib b, formed by bending the strip transversely along its central longitudinal line, as at b',`and then bending the portions which form the base a along parallel lines, as at a. The folding of the web forms a rigid rounded straight edge at b', which serves as a ground for the plasterer to work by. -The web or rib is curved upwardly to form a continuons hook, as it were, the curve of the inner portion b beingl substantially ogee or sin'uous, as shown in Fig.

5o 4. To lighten it, the ground is perforated, as

at c, along its entire length, there being in the base a small holes a2 torcceive fastenings for formedof terra-cotta bricke, nails d may be driven into the bricks or intothe mortar between them, or where the walls are constructed of material into which nails cannot. be-

driven the grounds may be secured by wires .to the metallic lathing f.

In Fig. l a wall `is shown formed vof terracotta brick with metallic lathin g and my deg is formed vin the plaster just above the edgesecuring it tothe wall. When the walls are To adapt the device for l b' to expose the upper and inner surface of.` the web, so that picture-hangers h may be engaged therewith. If desirable for purposes of ornamentation, a su pplemental molding h', having catches h2 to engage the web, as shown in Fig. 6, may be used, or brackets rfor shelves or coat-hooks j may be suspended from the web, as illustrated in Figs. 7 and 8.

Where the ground is secured to the wall near the floor, a strip'k ofwood may besupported in the web or rib b to receive the nails los, by which the base-boards k and molding 7a2 are secured in place, and, if desirable,

the strip 7c may be employed to support the supplemental molding h', as best shown in Fig..10.

It is evident that the form of my device may be varied. In Figs. 11 and. 12 only one portion of the base is employed, the other part being cutaway, and in Fig. lit a portion of the base is curved, .as at a3, so that its edge is parallel to the straight edge b to form with the web a continuous pocket or substantially cylindrical groove a4 to receive picture-hangers and the like. In Fig. 13 the device consists of twogstrips, each 'having a base m, a web m', and a bent .portion m2 to form-the straight edge m3. Between the webs m' a strip 'n of wood is placed, to which the supplemental picture-molding may be nailed. l Other changes may' be made in my device without departing from the spirit and scope of' the invention.

It will be seen that in each of the'forms IOOv 13 the, base extends inopposite directions from the web, and both portions of said base are in one and the same plane, whereby the l device is adapted -to be secured upon a fiat wall with the web projecting, so as to support the plaster to the best possible advan-v purposes hereinbefore described whenever such space is desired. Vhen such space is to be left, it is obvious that the plaster above the web can be much more easily formed with i a straight inclined surface, so asvto leave a space, than would be possible if a straight web were employed.

Having thus explained the nature of the invention and described a way of constructlng and using the same, though withoutattempting to set forth all of the forms i-nwhich Yit may be made or all of .the modes of its use, I declare that what I claimis- 1. A device of the characterspeciied, comprising a web having a vstraight -front con-j tinuous edge and having a dat base integral with its other edge and extending in two directions therefrom, both of Athe baseextensions being in the same plane, Wherebyithey are adapted to be secured upon a fiat-wall.

5.2. A device of the character specified coul-. 4prlsing two fiat straight base portions adapt-Vl ed to be secured upon a flat Wall,l and web portions integral therewith and projecting forward therefrom and having a front edge straight and continuous. l

3. A device lof the character specified, comprsing a Web transversely curved from edge to edge to form a concaved trough-shaped rib and having its outer edge rounded and formed straight and continuous, and a uniformly dat base integral with said web and adaptedto be secured upon a fiat wall.

1.4. A device of the character specified con sisting of a metallic strip folded transversely along a longitudinal line to form a web with a rounded and straight continuous outer edge, said web being transversely curved fromedge to edge to form 4a concaved trough-shaped rbfsaidstrpbeing bent along lines parallel to-said Ilongitudinal line to form uniformly' ila-t base portions, said base portions extending-in'opposite directions 4.and in one plane adapted to lie dat against and to be secured upon ya flat-wall.

In testimony whereof I have afxcd my signature in ypresence of two witnesses.

'FRANK L. UNION.

itnesses: I

B. MAY, P. TW. Ramarri. 

